Home / 13,807.04-20,720.88-5,374.87

Finding the Fourth Proportional to 13,807.04, 20,720.88 and 5,374.87

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Solution

The fourth proportional to 13,807.04, 20,720.88 and 5,374.87 is: 8,066.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.04 : 20,720.88 = 5,374.87 : x
  2. Step 2: Convert to fraction form
    13,807.04/20,720.88 = 5,374.87/x
  3. Step 3: Cross multiply
    13,807.04x = 20,720.88 × 5,374.87
  4. Step 4: Simplify right side
    13,807.04x = 111,371,984.48
  5. Step 5: Solve for x
    x = 111,371,984.48/13,807.04
  6. Step 6: Final answer
    x = 8,066.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.